A Shure Shootout! SRH-940 vs SRH-1440 vs SRH-1840 - Page 14

Guys is there any harmonic distortions on SRH 1440. Innerfedility graph shows distortions in the curve .

Do SRH 1440 have many harmonic distortions like depicted in the graph?

Some one told me all I couldbhear is distortions in SRH 1440 is that true ?
Is the trebble harsh in SRH1440 ?
I'm going to buy SRH 1440 ,though Im a basshead , wanna see i may love mids treble in SRH 1440 .

Can I boost the bass in SRH 1440 through an EQ or does it make bass bloated ?

Any suggestions to improve bass on SRH1440 is appreciated like through fiio amps (Fiio E07k , bass adjustments )